background_image_filename = 'sushiplate.jpg' sprice_image_filename = 'fugu.png' import pygame from pygame.locals import * from sys import exit pygame.init() screen = pygame.display.set_mode((640, 480), 0, 32) background = pygame.image.load(background_image_filename).convert() sprite = pygame.image.load(sprice_image_filename) # our clock object clock = pygame.time.Clock() x1 = 0. x2 = 0. # speed in pixels per second speed = 250. frame_no = 0 while True: for event in pygame.event.get(): if event.type == QUIT: exit() screen.blit(background, (0, 0)) screen.blit(sprite, (x1, 50)) screen.blit(sprite, (x2, 250)) time_passed = clock.tick(30) time_passed_seconds = time_passed / 1000.0 distance_moved = time_passed_seconds * speed x1 += distance_moved if (frame_no % 5) == 0: distance_moved = time_passed_seconds * speed x2 += distance_moved * 5 # if the image goes of the end of the screen, move it back if x1 > 640.: x1 -= 640. if x2 > 640.: x2 -= 640. pygame.display.update() frame_no += 1
Could someone please explain to me what going on in the if statement. I don't understand why there is a duplicate line of code in the if statement that was also just a few lines back. The variable frame_no is also getting me. It's already 0 so the remainder of 0 \ 5 is always going to be 0. Thanks for any and all replies.